This is teletype ancillary equipment for use with off-line classified communications equipment. No other information available. Complement data is the same as AN/SGA-1, except this set uses the MT-1680/SGA-2 instead of the MT-1679/SGA-1 and the SSM-33 mixer instead of the SSM-3..

NEED PHOTO

 
Contributors:

1) Nick England <navy.radio(at)gmail.com>
 

Feb 26/15